TM 5-4310-335-14
Table 5-1. TROUBLESHOOTING (Continued)
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
7.
OIL LEAKAGE
Step 1. Inspect for damaged oil seal.
Replace a leaking oil seal.
Step 2. Inspect for leaky packing.
Replace packing.
Step 3. Check the entire piece of equipment for oil leaks.
Replace all broken or malfunctioning parts.
8.
LOW INTERSTAGE PRESSURE
Step 1. Check for restriction of 1st stage inlet.
Remove any restrictions.
Step 2. Inspect for leaky 1st, 2nd, or 3rd stage relief valve.
Replace faulty parts.
9.
INTERSTAGE PRESSURE
Inspect for clogged intercoolers.
WARNING
Dry cleaning solvent, P-D-680 or P-S-661, used to clean parts is potentially
dangerous to personnel and property. Avoid repeated and prolonged skin
contact. Do not use near open flame or excessive heat. Flash point of
solvent is 100 (39 ) - 138 (59 ).
F
C
F
C
Clean the intercoolers with cleaning solvent P-D.680 and dry thoroughly with
compressed air. If the intercooler is still clogged, then replace.
10. EXCESSIVE AND CONTINUOUS DUMPING OF MOISTURE SEPARATOR
Inspect for an oil system failure.
Replace defective tubes or tubing, if the problem is still present, then replace the oil pump.
11. INSUFFICIENT SPEED AND OVERHEATING OF COMPRESSOR UNIT
Step 1. Inspect parts for lack of lubrication, and check the oil level.
Fill the oil sump as described In the lubrication order. If a lack of lubrication is still a problem then
inspect the oil system in detail and correct all leaks and replace oil pump if necessary.
Step 2. Check for insufficient surrounding cooling air.
Operate the unit under the prescribed conditions.
Step 3. Inspect for bent fins or intercoolers.
Straighten all bent fins.
12. INABILITY OF COMPRESSOR UNIT TO TURN OVER OR REACH SPEED
Step 1. Inspect basic compressor for failure.
Remove gasoline engine from basic compressor and cheek each for freedom of movement.
Step 2. Inspect gasoline engine for failure.
Remove gasoline engine from basic compressor and check each for freedom of movement.
Step 3. Inspect for broken spline.
Check spline condition.
Section III. GENERAL MAINTENANCE
5-6. General
This section contains maintenance data pertinent to direct support and general support maintenance
personnel.
5-7. Repair and Replacement Standards
a. Repair and replacement standards are listed in TM 5-2805-257-14 on the engine.
5-8
